Database version mismatch crashes silently

[kumavis]

On OSX, running Mist.app in a situation that causes a Database version mismatch causes the app to crash without any warning or report.

[obscuren]

There used to be a separate handler for the CLI and GUI versions of the protocol. Unfortunately it seems to have been "misplaced".

I'll see to it that it will be "un-misplaced" ;-)